A hemocompatible composition comprising a polymer containing at least one pharmacologic material chemically bonded to a polymer backbone. Such compositions may be obtained by reacting a pharmacologic material with a compound containing a polymerizable group (e.g., an acyl halide) and thereafter either copolymerizing the acylated material with one or more copolymerizable monomers or first irradiating a backbone polymer and thereafter grafting the acylated pharmacologic material onto the irradiated polymer. The resulting products are hemocompatible and may be used in the manufacture of medical devices which come in contact with blood or other bodily fluids. The advantage of chemically bonded pharmacologic materials is that they are not leached out and retain their pharmaceutical effectiveness for a long period of time. The compositions may contain one or more additional pharmacologic materials which are physically admixed with polymers containing bonded pharmacologic materials.
一种血液相容性组合物,包括至少一种药物物质与聚合物骨架
化学键合的聚合物。这样的组合物可以通过将药物物质与含有聚合物化合物基团(例如
酰卤)的化合物反应,然后将酰化物材料与一个或多个共聚单体共聚合,或者首先辐照骨架聚合物,然后将酰化药物物质嫁接到辐照的聚合物上而获得。所得的产品具有血液相容性,可以用于制造与血液或其他体液接触的医疗器械。
化学键合的药物物质的优点是它们不会被溶出并且长时间保持其药物效力。该组合物可以包含一个或多个额外的药物物质,这些药物物质与含有键合药物物质的聚合物物理混合。